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  • 30/03/2026

    FEATURE|Green Steel Buyers’ Guide: CBAM 2026, Carbon Costs & Low-Carbon Certifications Explained

    This article primarily outlines the core framework and cost accounting logic of the CBAM 2026 policy, clarifies the essential differences between terms such as "green steel," "low-carbon emission steel," and "near-zero emission steel," and interprets the "hard currency" status of the EPD (Environmental Product Declaration) in international procurement. It aims to help international buyers see through the fog of "green labels" and make informed procurement decisions in the new era of green trade.

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  • 03/03/2026

    FEATURE| Complete Guide to Color Steel Tiles: Structure, Performance, and Comparison

    This article comprehensively covers the definition, classification (single-layer panels and sandwich composite panels), model specifications and characteristics of various panel types, performance advantages, and fire safety precautions for color steel tiles (profiled steel sheets). Through a multi-dimensional comparison with colored stone tiles, it elucidates the fundamental differences between the two materials in terms of composition, performance, and applications.

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  • 29/01/2026

    FEATURE| Complete List and Selection Reference of Industrial Pipe Fittings

    This article comprehensively explores the pivotal role of pipe fittings as the “joints” of piping systems. It provides a detailed explanation of their definition, common types and functions, performance characteristics of different materials, and selection criteria. Furthermore, it analyzes the current industry trends toward high-end, intelligent, and green development.

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  • 29/12/2025

    FEATURE| Steel Pipe Coating System Guide: Selection, Application to Delivery Practice

    This article comprehensively outlines the importance, technical classification, inspection and transportation essentials, engineering selection methodology, and future trends of steel pipe coatings, serving as a complete technical guide for engineering projects.

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  • 28/11/2025

    FEATURE| Corrugated Steel Culvert: The Solution for Cost Reduction and Efficiency Improvement in Infrastructure Engineering

    Using corrugated steel culverts instead of traditional concrete culverts for culvert construction offers unparalleled advantages in terms of construction time, cost, and environmental benefits. These trends collectively point to a safer, smarter, and more sustainable infrastructure future.

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  • 02/12/2024

    FEATURE| Main Shipping Routes for International Logistics Transportation

    The routes of maritime transport are distributed between the oceans, which is also the advantage of maritime transport over other modes of transport. When choosing a route, the conditions of the cargo, ships, and ports must be considered, and a comprehensive assessment of the system organization must be made before a reasonable choice can be made.

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  • 30/09/2024

    FEATURE|The Analysis of the Development Status of Steel Market in Shandong Province(China)

    ​Affected by the terminal market, domestic steel demand will continue to be sluggish, which will lead to inventory backlogs. Therefore, merchants generally begin to seek overseas orders. Domestic steel prices are in the global price trough, and the RMB exchange rate is still hovering at a low level, making China's steel exports more cost-effective.

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Short News
16/04 17:33
< On April 16, the price of wear-resistant steel plates in Tangshan remained stable. NM500 (AR500) Puyang 12 (hot rolled) 688.02. (USD/ton)
16/04 17:31
< On April 16, the price of cold rolled ribbed rebar in Tianjin rose slightly. CRB600H (ASTM A615 Grade 80) Qiaojian Φ6 (coil) 573.60, up 1.47. (USD/ton)
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16/04 17:30
< On April 16, the price of cold-rolled steel sheet and coil remained stable in Shanghai. SPCC (ASTM A1008 CS) Baosteel 2.5*1250*C 619.07 (USD/ton)
16/04 17:29
< On April 16, the price of hot rolled steel strip in Anshan remained stable. 40Cr (ASTM 5140) Lingang Steel 3.0*580-750mm 624.94. (USD/ton)
16/04 17:24
< On April 16, the price of electro-galvanized steel sheet and coil in Shanghai remained stable. SECC (ASTM A879/A879M-22) Bengang 1.0*1250*C 676.29. (USD/ton)
16/04 17:23
< On April 16, the price of Z-shaped steel in Jiangsu remained stable. Q235B (ASTM A36) common 260*80*20*3.0mm 635.21. (USD/ton)

Answers

  • How much does a sheet of 4mm thick patterned steel plate cost?

    The price of patterned steel plates varies depending on their thickness. With the same material, thicker plates are more expensive. Different materials also have different prices. The specific price depends on market conditions. Please tell us your specific purchasing needs so we can give you a more accurate reply and quote.


  • What is P20 material?

    P20 is a pre-hardened plastic mold steel, corresponding to the Chinese national standard 3Cr2Mo and the German standard 1.2311.

    P20 contains alloying elements such as chromium and molybdenum, has a uniform microstructure, well-controlled impurities, stable machining performance, reasonable tool wear, and good surface finish. It is suitable for making structural parts such as cavities, cores, and mold frames. Upon arrival, it can be directly milled, ground, drilled, and EDM machined without additional quenching and tempering, shortening the mold making cycle and reducing precision issues caused by heat treatment deformation.

    Its polishing performance meets the requirements of most plastic exterior parts, adapting to the surface standards of molds for household appliance housings, automotive interiors, and daily necessities. It can also undergo nitriding treatment to improve wear resistance.


  • National Standard Tolerances for Stainless Steel Thickness?

    Thin Plates (Below 0.5mm): For these extremely thin stainless steel plates, the allowable thickness deviation is relatively small, within ±0.08mm. This requires manufacturers to strictly control the thickness during manufacturing to ensure product precision and stability.

    Thin Plates (0.5mm to 1mm): The allowable thickness deviation for this type of thin plate is slightly larger than that for plates below 0.5mm, within ±0.10mm. Although the deviation range is wider, high manufacturing precision is still required to meet market demands.

    Medium Plates (1mm to 2mm): For this type of medium-thickness stainless steel plate, the allowable thickness deviation is ±0.12mm. This standard ensures product quality while also considering production efficiency and cost control.

    Thick Plates (Greater than 2mm): For stainless steel plates thicker than 2mm, the allowable deviation range is relatively larger, within ±0.15mm. This is mainly because as the thickness increases, the difficulty and uncertainty in the manufacturing process also increase accordingly.

    For hot-rolled or cold-drawn (rolled) stainless steel seamless pipes, the permissible deviation of their wall thickness is usually within ±12.5%.


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